2. Metabolic Enzyme/Protease
  3. Angiotensin-converting Enzyme (ACE)
  4. Omapatrilat

Omapatrilat  (Synonyms: BMS-186716)

Cat. No.: HY-18208 Purity: 98.87%
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Omapatrilat is a dual inhibitor of the metalloproteases ACE and NEP with Ki values of 0.64 and 0.45 nM, respectively.

For research use only. We do not sell to patients.

Omapatrilat Chemical Structure

Omapatrilat Chemical Structure

CAS No. : 167305-00-2

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 109 In-stock
Solution
10 mM * 1 mL in DMSO USD 109 In-stock
Solid
5 mg USD 99 In-stock
10 mg USD 172 In-stock
25 mg USD 370 In-stock
50 mg USD 686 In-stock
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Based on 1 publication(s) in Google Scholar

Omapatrilat Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Omapatrilat is a dual inhibitor of the metalloproteases ACE and NEP with Ki values of 0.64 and 0.45 nM, respectively.

IC50 & Target

Ki: 0.45 nM (NEP), 0.64 nM (ACE)[1]; IC50: 8 nM (NEP), 5 nM (ACE)[2]

In Vitro

Omapatrilat exhibits high potency for NEP, NEP2 and ACE, moderate strong activity against APP, but low activity against ECE1 (Ki=0.45, 25, 0.64, 250 nM) [1]. In vitro autoradiography using the specific NEP inhibitor radioligand 125I-RB104 and the specific ACE inhibitor radioligand 125I-MK351A show omapatril at (10 mg/kg) causes rapid and potent inhibition of renal NEP and ACE, respectively, for 24 h[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Omapatrilat Related Antibodies
In Vivo

Omapatrilat demonstrates excellent blood pressure lowering in a variety of animal models characterized by various levels of plasma renin activity and significantly potentiates urinary sodium, ANP, and cGMP excretion in a cynomolgus monkey assay. Omapatrilat decreases mean arterial pressure (MAP) approximately 40 mmHg below baseline from 10 to 24 h. Oral administration of omapatrilat at 100 μM/kg once daily results in a 38 mmHg decrease in systolic blood pressure at day three as compared to vehicle [2]. Omapatrilat is widely used in experimental protocols related to hypertension and heart failure. Chronic oral administration of omapatrilat reduces aortic leakiness and atheroma formation with enhanced endothelial independent vasorelaxation to ANP[3]. Omapatrilat causes significant inhibition of plasma ACE and increased plasma renin activity in rats[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

408.53

Formula

C19H24N2O4S2
CAS No.
Appearance

Solid

Color

White to gray

SMILES

O=C([C@@H]1CCC[C@](N21)([H])SCC[C@H](NC([C@@H](S)CC3=CC=CC=C3)=O)C2=O)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

-20°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 31 mg/mL (75.88 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.4478 mL 12.2390 mL 24.4780 mL
5 mM 0.4896 mL 2.4478 mL 4.8956 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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Concentration (final)

C2

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Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 4.25 mg/mL (10.40 mM); Clear solution

    This protocol yields a clear solution of ≥ 4.25 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (42.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.12 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References
Kinase Assay
[1]

Omapatrilat is dissolved in 100% DMSO at 10 mM and diluted to 1% DMSO. NEP, NEP2, ACE and APP assays are performed at pH 7.4. The reaction buffer for NEP and NEP2 contained 50 mM HEPES, 140 mM NaCl, 10 mM KCl, 0.01% BSA. The buffer for ACE contained 100 mM Tris-HCl, 50 mM NaCl, 10 μM ZnCl2, and the buffer for APP contained 100 mM HEPES and 0.01% BSA. Assays are performed in 100 μL volume in black 96-well round-bottom plates at room temperature. Reactions are continuously monitored with excitation and emission wavelengths appropriate for each respective substrate. Enzyme velocity is determined from the linear part of the reaction[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[3][4]

Rats: Sprague Dawley rats are weighed and then gavaged with vehicle (5% arabic gum) or omapatrilat (0.1, 1, 10 mg/kg) (n 5 6 rats/group). Rats are killed by decapitation at 1 h after gavage. Trunk blood is collected into prechilled tubes containing EDTA/aprotinin for the measurement of PRA and into prechilled heparin tubes for the measurement ofplasma ACE[4].

Rabbits: Omapatrilat is dissolved in drinking water. Rabbits are divided into 2 groups with 1% cholesterol diet, placebo-treated group and omapatrilat-treated group, and administrated (12 mg/Kg/day omapatrilat) once daily for 8 weeks. To demonstrate the acute effect of omapatrilat, urine is collected after omapatrilat or placebo administration for 24 hours at day 1, and urine volume, cGMP and ANP levels are assessed[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.4478 mL 12.2390 mL 24.4780 mL 61.1950 mL
5 mM 0.4896 mL 2.4478 mL 4.8956 mL 12.2390 mL
10 mM 0.2448 mL 1.2239 mL 2.4478 mL 6.1195 mL
15 mM 0.1632 mL 0.8159 mL 1.6319 mL 4.0797 mL
20 mM 0.1224 mL 0.6120 mL 1.2239 mL 3.0598 mL
25 mM 0.0979 mL 0.4896 mL 0.9791 mL 2.4478 mL
30 mM 0.0816 mL 0.4080 mL 0.8159 mL 2.0398 mL
40 mM 0.0612 mL 0.3060 mL 0.6120 mL 1.5299 mL
50 mM 0.0490 mL 0.2448 mL 0.4896 mL 1.2239 mL
60 mM 0.0408 mL 0.2040 mL 0.4080 mL 1.0199 mL
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Omapatrilat Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Omapatrilat167305-00-2BMS-186716BMS186716BMS 186716Angiotensin-converting Enzyme (ACE)Inhibitorinhibitorinhibit

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